bicolor, Hemipimelodus Fowler [H. W.] 1935:100, Fig. 23 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 87; ref. 13881] Bangkok, Thailand. Holotype (unique): ANSP 60777. Type catalog: Böhlke 1984:22 [ref. 13621], Ferraris 2007:34 [ref. 29155]. •Valid as Hemipimelodus bicolor Fowler 1935 -- (Desoutter 1977:19 [ref. 20628], Rainboth 1996:167 [ref. 22772]). •Probable synonym of Arius maculatus (Thunberg 1792) -- (Kailola 1999:1854 [ref. 24732]). •Synonym of Arius maculatus (Thunberg 1792) -- (Kailola 2004:127 [ref. 28108], Marceniuk & Menezes 2007:18 [ref. 29031], Kottelat 2013:246 [ref. 32989]). •Questionably valid as Arius bicolor (Fowler 1935) -- (Ferraris 2007:34 [ref. 29155]). Current status: Synonym of Arius maculatus (Thunberg 1792). Ariidae: Ariinae. Distribution: Lower courses of Mekong and Chao Phrya River basins [if valid]. Habitat: freshwater.